Gear housing for spinning and twisting machines



July 21, 1925.

F. L. CRCKETT GEAR HOUSING FOR SPINNING AND TWISTING MACHINESH:

Filed qan. 2s, 1924 ,null/1111111] Patented July 21, 1925.

UNITED STATES PATENT OFFICE.

FRANK L. CROCKETT, OF EAST DOUGLAS, MASSACHUSETTS, ASSIG-NOR TO WHITINMACHINE WORKS, OF WHITINSVILLE, MASSACHUSETTS, Aj GOBOBATION OFMASSACHUSETTS.

GEAR HOUSING FOR SPINNING AND TWISfIINGr MACHINES'.

Application led January 23, 1924. Serial No. 687,943.

To all lwhom t may concern.'

Be it known that I, FRANK L. Cnoonrxrr, a citizen of the United Statesof America, residing at East Douglas, in the county of Worcester andCommonwealth of Massachusetts, have invented an Improvement in GearHousings for Spinning and Twisting Machines, of which the following is adescription sufficiently full, clear, and exact to enable those skilledin the art to which it appertains or with which it is most nearlyconnected to make and use the same.

My invention has reference to spinning frames and like machines whereinthe driving gearing is enclosed in a boxed end, access to the gearingbeing obtained through suitable openings, usually covered by panelseither bodily removable from the machine or by hinged doors swinging ina plane at right angles to the frame. The removable panels areobjectionable on account of the liability to damage when taken from theframe and the hinged doors when opened obstruct the working alleys atthe end of the machine.

The object of my invention is to provide a construction that will befree from the objectionable features mentioned above.

The novel features of my invention will be fully described in thesubjoined specification and particularly pointed out in the followingclaims.

A practical embodiment of my invention is represented in theaccompanying drawings forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in all theviews.

Referring to the drawings: Figure 1 is an end elevation of a spinningmachine showing one of the end doors closed and the other open. Figure 2is a vertical section through the center of Figure 1, Figure 3 is aperspective view of a portion of the channel or groove in which the enddoors freely slide. Figure 4 is a view of the retaining latch forsupporting a door in its open position.

In the drawings, the open side of the boX- end 1 is closed by an upperpanel 2 and a lower panel 3, in the space between which a third panel 4is located. All of these panels are securely mounted to the boX-end byscrews so that the panels may be removed when desired. The top of panel4 has a semi-circular shaped opening 5 so located that access may be hadto the change gearing within the box-end. The opening 5 is closed by twoquadrant shaped doors 6' and 7 each serving as a cover for one half ofthe semicircular opening 5 and are pivotally supported at their centreson studs or pivots 8 and 9 respectively. These studs are in a stationaryrelation with the box-end of the machine, preferably I mount themadjacent to the vertical centre line of the boX-end on a yoke 10 boltedto the back of the box-end. The axis of studs are perpendicular to theplane of the end of the machine and in consequence the doors swing ontheir respective studs in a plane parallel to the plane of the end ofthe machine. The doors are so mounted on their respective studs that theinner sides of the doors will project slightly beyond the outer side ofthe panel 2 thus allowing sutlioient clearance for thedoors to swing bythe panel when the former are in their open positions.

The doors are maintained in their closed position by suitable meansco-operating with their peripheries, preferably I use a segmental groove11 formed in the upper part of panel 4 in which the peripheries of thedoors may freely slide. When one of the doors is opened the other might,through Y force of gravity, swing out of its normal closed position soas to overlap a portion of the opening normally covered by the other, toprevent this means are provided, prefer ably by an abutting pin or lug12 fixed in the center of the groove 11 against which the lower cornerof each door abuts.

wWhen the operative desires to make a change in the gearing containedwithin the box-end he grasps the knob 13 fastened to the outside of thedoor and swings the door on its pivot until the edge of the dooriscaught by the hooked end 14 of the latch 15 which is pivoted to thebracket 16 in a fixed relation with the upper panel 2. A compressionspring 17 abutting between the inside of panel 2 and the arm 18 of thelatch 15 maintains the latter in contact with the movable door at alltimes so that when the door is raised to its full opening it isautomatically caught and held until the operative releases the latch bypressure on its lower end.

While the construction herein described,

and illustrated in the accompanying drawings is the preferred form of myinvention, it is obvious that various changes in the proportions, sizeand minor details of the construction may be made without departing fromthe spirit or sacrificing any of the advantages of the invention.

What I claim, and desire to secure hy Letters Patent, is

l. In a spinning or twisting machine having a box-end with changegearing therein,.three stationary panels covering one side of saidgearing, an `opening in the middle .panel giving access to the gearing,means for covering said opening projecting slightly beyond the face ofthe upper panel and pivotally movable in a plane parallel to the faces.of the panels.

2. In `a spinning or twisting machine having a box-end' with changegearing thereL in, a .plurality of stationary panels covering one sideof said gearing, an opening in one of said panels giving access to saidgearing, means for coveringsaid opening pivotally movable in a' planeparallel to the facesiof the panels and means to maintain the coverf-ing means in an .open position.

3. In a spinning or twisting Ymachine having a box-end with changegearing therein, three stationary panels covering one side of the saidgearing, a semi-circular shaped opening in the top of the middle panelgiif'ing access ie the gearing, two quadrant shaped doors covering saidopening, a pivot for supporting each door, a circular channel in whichthe doors slide and a lug or pin against which the .doors ahnt in theirclosed position.

4. In a spinning" or twisting machine having a box-end with changegearing therein, three stationary panels covering :one side of saidgearing, a. semi-circular shaped opening formed in the upper part of themiddle panel givingV access to the gearing, two quadrant shaped'doorscovering said opening, pivots about which the doors revolve in a planeparallel to the faces Vof the panels, and a latch for each door tomaintain the same in its open position.Y

In testimony whereof, I have signed this specification.

.y FRANK L. CROGI'IE'IT.

